Area of Triangle Formula: In this article, we cover the definition of triangle and its various types based on the angles and length of side. Besides, we will see how to calculate the area of a ...

Understanding different types of angles and that angles in a triangle sum to 180° can be helpful when classifying a triangle. Recognising line symmetry and rotational symmetry will also help ...

Calculating missing angles using other known fact Sometimes you will use other known facts about angles to calculate angles around a point.